About electricity at Hogwarts:

I’m not sure where this conception that it’s against the rules to bring electronics to Hogwarts comes from. I don’t remember a rule being mentioned in canon and I can’t find anything to that end on the wiki.

It’s also not true that a spell is what prevents electronic devices from working at Hogwarts, It is, in fact, the high levels of magic present at Hogwarts that makes those devices “go haywire”.

Our thought is that, since it is canon that electronic devices can be made to work in areas of high magic if you replace their power source with magic, wizards could eventually optimize this process to the point that everyone at Hogwarts could have a laptop.

The other way of thinking is that, given enough time, a clever muggleborn will figure out a way to protect electronic devices from ambient magic. After all, personal electronic devices have only been around for a little while. By the time covered in canon, there probably wasn’t much research on the topic being done.

But after canon is where headcanons come in, which is, after all, what this blog is all about.

Depending on what electrical conduit you decide to touch/grab/stick your tongue on, you could be in for quite a ride. If you’re in danger of getting an electric shock, you should at least know the …

Awesome read for writers. It has a chart showing the effects of various amperes of electricity on the human body, which I’ve been unable to find anywhere else.

Car's Rooftop Device Makes Electricity From Rushing Wind


by Michael Keller

There are more places for electric vehicles to get power than just onboard batteries and stationary charging stations. Korean university and Samsung engineers say they have created a generator that makes electricity from flapping materials.

Their prototype, which can be mounted to an automobile’s roof, harnesses the triboelectric effect. This is the same phenomenon that causes a static charge to build up when a person walks across a carpet or a glass rod is rubbed with silk.


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Magnets!… How do they work?!

This “unclassified” US Navy video from 1954 explains how basic electromagnetism works, and we’ve definitely come a long way since then in our understanding of magnets.

UC Berkeley researchers are working on replacing traditional transistors with magnets to save power. Transistors are the extremely tiny electronic switches that are in all of our computers and gadgets. About 4 billion of them can fit on a CPU the size of a postage stamp. More transistors means faster phones and tablets, but also means more power is needed.

Researchers have been looking into using magnets as an alternative to transistors for over a decade, because they use far less energy. Until very recently, the power needed to generate the magnetic field to orient the magnets outweighed the benefits of using the magnets themselves. They overcame this limitation by using the special properties of the rare, heavy metal called tantalum.

“This is a breakthrough in the push for low-powered computing,” said study principal investigator Sayeef Salahuddin, UC Berkeley assistant professor of electrical engineering and computer sciences. “The power consumption we are seeing is up to 10,000 times lower than state-of-the-art schemes for nanomagnetic computing. Our experiments are the proof of concept that magnets could one day be a realistic replacement for transistors.”

As research into this technology progresses, perhaps your smartphone will last longer than a day between charges.

Learn more about how magnets could revolutionize computer processors

The pano view of the abandoned building of first municipal power plant (1896) of the city of Kharkov. The embankment of the river Kharkov - Панорамный вид заброшеного здание первой в Харькове городской электростанции (1896). Набережная р. Харьков by victor.dashkiyeff on Flickr.

I can feel a bit like a scientist every Wednesday when I have the practical works of Physical Measurements (a course in Physics). Today I examined water’s electroconductivity by putting an electrical network together and measuring the amperage and voltage for tap water, distilled water, and the last one mixed with different quantities of salt. The annoying part about measuring stuff is that you have to do everything for multiple times. I had to measure a tricky object one hundred times the first lesson we had 😃
I post similar images on sci-universe’s instagram account!